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HIGH

CVE-2021-3673

CVSS v3

7.5

HIGH

EPSS Score

1.8 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability was found in Radare2 in version 5.3.1. Improper input validation when reading a crafted LE binary can lead to resource exhaustion and DoS.

Technical details

Published
2021-08-02

Frequently asked questions

What is CVE-2021-3673?

A vulnerability was found in Radare2 in version 5.3.1. Improper input validation when reading a crafted LE binary can lead to resource exhaustion and DoS.

Is CVE-2021-3673 actively exploited?

Active exploitation of CVE-2021-3673 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-3673?

CVE-2021-3673 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2021-3673 affecting your environment?

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